<?php

if (! defined ( 'BASEPATH' ))
	exit ( 'No direct script access allowed' );
/**
 * CodeIgniter
 *
 * An open source application development framework for PHP 5.1.6 or newer
 *
 * @package		CodeIgniter
 * @author		ExpressionEngine Dev Team
 * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
 * @license		http://codeigniter.com/user_guide/license.html
 * @link		http://codeigniter.com
 * @since		Version 1.0
 * @filesource
 */

// ------------------------------------------------------------------------


/**
 * CodeIgniter XML Helpers
 *
 * @package		CodeIgniter
 * @subpackage	Helpers
 * @category	Helpers
 * @author		ExpressionEngine Dev Team
 * @link		http://codeigniter.com/user_guide/helpers/xml_helper.html
 */

// ------------------------------------------------------------------------


/**
 * Convert Reserved XML characters to Entities
 *
 * @access	public
 * @param	string
 * @return	string
 */
if (! function_exists ( 'xml_convert' )) {
	function xml_convert($str, $protect_all = FALSE) {
		$temp = '__TEMP_AMPERSANDS__';
		
		// Replace entities to temporary markers so that
		// ampersands won't get messed up
		$str = preg_replace ( "/&#(\d+);/", "$temp\\1;", $str );
		
		if ($protect_all === TRUE) {
			$str = preg_replace ( "/&(\w+);/", "$temp\\1;", $str );
		}
		
		$str = str_replace ( array ("&", "<", ">", "\"", "'", "-" ), array ("&amp;", "&lt;", "&gt;", "&quot;", "&apos;", "&#45;" ), $str );
		
		// Decode the temp markers back to entities
		$str = preg_replace ( "/$temp(\d+);/", "&#\\1;", $str );
		
		if ($protect_all === TRUE) {
			$str = preg_replace ( "/$temp(\w+);/", "&\\1;", $str );
		}
		
		return $str;
	}
}

// ------------------------------------------------------------------------

/* End of file xml_helper.php */
/* Location: ./system/helpers/xml_helper.php */